Can anyone give advice on a good automatic fish-feeders for holidays? I just don't trust those dissolving food blocks, although I have used them.

I have bought a Fish-Mate F14 automatic feeder (not used it yet), but I've now noticed that it releases each feed over a 2 hour period. Which would probably result in my 2 bigger greedier fish, getting all the food, with the others going hungry.

Can anyone recommend a good automatic fish feeder that delivers each meal in one hit (rather than gradually over a long time)?

I wouldn't use the blocks, you don't want that amount of food just sitting in the tank polluting the water. Auto-feeders are the best option after having someone that knows what they're doing coming round to feed the fish

The Eheim autofeeder does look good, but with the Eheim it looks like you have to keep the top lid of your tank open, as opposed to having a small hole in the tank lid which can be covered over when the feeder is not in use. Is there a way to use an Eheim autofeeder without having to keep the tank lid open?

Yeah they do cut down on condensation a lot. The best ones are the sliding glass ones. Does your tank have a little glass shelf about an inch from the top? This is where you rest the runners for the condensation cover.

It doesn't have a shelf as such, but it does have a glass piece going across the middle, and this is resting on glass pieces on either side (each about 4 inches long). Is that what you mean by a glass shelf? My tank is also bow-fronted, would that make fitting a condensation tray tricky?

I have a Rena bow fronted tank and the lid is also the condensation cover. Some tanks are designed like this so condensation runs straight back into the tank. If you can post a photo of your tank or identify its make and model someone may be able to tell you if a condensation cover is required.